WO2024078456A1 - Uplink control information transmission method and apparatus, and terminal - Google Patents

Abstract

The present application relates to the field of communications, and discloses an uplink control information transmission method and apparatus, and a terminal. The uplink control information transmission method of an embodiment of the present application comprises: a terminal mapping uplink control information (UCI) to a number N of codewords among a number M of codewords used for uplink transmission, to perform uplink transmission, M being a positive integer greater than or equal to 2, and N being a positive integer less than or equal to M.

Description

Uplink control information transmission method, device and terminal

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202211235984.2 filed in China on October 10, 2022, the entire contents of which are incorporated herein by reference.

Technical Field

The present application belongs to the field of communication technology, and specifically relates to a method, device and terminal for transmitting uplink control information.

Background technique

When the transmission rank is less than or equal to 4, the relevant technology only supports one codeword (also called transport block (TB)) for transmission. The meaning of one codeword transmission is that the network side device indicates a modulation and coding scheme (MCS) when scheduling uplink data. Under uplink 8-antenna transmission, the maximum transmission rank can be equal to 8, which means that a maximum of 8 layers of data can be transmitted simultaneously. When the transmission rank is greater than 4, the terminal may support the simultaneous transmission of two codewords. When the terminal needs to report uplink control information (UCI) to the base station, and the terminal can send two codewords at the same time, how to multiplex UCI on the uplink channel becomes an urgent problem to be solved.

Summary of the invention

The embodiments of the present application provide an uplink control information transmission method, device and terminal, which can solve the problem of how to multiplex UCI onto an uplink channel when the terminal can send two codewords at the same time.

In a first aspect, a method for transmitting uplink control information is provided, the method comprising:

The terminal maps the uplink control information UCI to N codewords among the M codewords used for uplink transmission for uplink transmission; wherein, M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.

In a second aspect, an uplink control information transmission device is provided, including:

A first execution module, configured to determine N codewords among M codewords for uplink transmission;

The first transmission module is used to map the UCI to N codewords among M codewords for uplink transmission for uplink transmission; wherein, M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.

In a third aspect, a method for transmitting uplink control information is provided, the method comprising:

The network side device sends a first control signaling to the terminal, where the first control signaling is used to instruct the terminal to map the UCI to N codewords among M codewords for uplink transmission for uplink transmission; wherein M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.

In a fourth aspect, an uplink control information transmission device is provided, including:

A second execution module, configured to determine a first control signaling;

The second transmission module is used to send a first control signaling to the terminal, where the first control signaling is used to instruct the terminal to map the UCI to N codewords among the M codewords used for uplink transmission for uplink transmission; wherein, The M is a positive integer greater than or equal to 2, and the N is a positive integer less than or equal to M.

In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to determine N codewords among M codewords for uplink transmission, and the communication interface is used to map UCI to N codewords among M codewords for uplink transmission for uplink transmission.

In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the third aspect are implemented.

In an eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the processor is used to determine a first control signaling, and the communication interface is used to send the first control signaling to a terminal.

In the ninth aspect, an uplink control information transmission system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the uplink control information transmission method as described in the first aspect, and the network side device can be used to execute the steps of the uplink control information transmission method as described in the third aspect.

In the tenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the method described in the first aspect is implemented, or the steps of the method described in the third aspect are implemented.

In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the third aspect.

In the twelfth aspect, a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the uplink control information transmission method as described in the first aspect, or to implement the steps of the uplink control information transmission method as described in the third aspect.

In the embodiment of the present application, the uplink control information UCI is mapped to N codewords among M codewords used for uplink transmission for uplink transmission, thereby solving the problem of how to transmit UCI.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of a wireless communication system applicable to an embodiment of the present application;

FIG2 is a schematic diagram of a flow chart of an uplink control information transmission method provided in an embodiment of the present application;

FIG3 is a schematic diagram of the structure of an uplink control information transmission device provided in an embodiment of the present application;

FIG4 is a schematic diagram of a flow chart of an uplink control information transmission method provided in an embodiment of the present application;

FIG5 is a schematic diagram of the structure of an uplink control information transmission device provided in an embodiment of the present application;

FIG6 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

FIG7 is a schematic diagram of the structure of a terminal implementing an embodiment of the present application;

FIG8 is a schematic diagram of the structure of a network-side device for implementing an embodiment of the present application.

Detailed ways

The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and/or" in the specification and claims represents at least one of the connected objects, and the character "/" generally represents that the objects associated with each other are in an "or" relationship.

It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE)/LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as for other systems and radio technologies. The following description describes a new radio (NR) system for example purposes, and NR terms are used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the ^6th Generation (6G) communication system.

FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (a home appliance with wireless communication function, such as a refrigerator, a TV, a washing machine or furniture, etc.), a game console, a personal computer (personal computer, PC), a teller machine or a self-service machine and other terminal side devices, and the wearable device includes: a smart watch, a smart bracelet, a smart headset, a smart glasses, a smart jewelry (smart bracelet, a smart bracelet, a smart ring, a smart necklace, a smart anklet, a smart anklet, etc.), a smart wristband, a smart clothing, etc. It should be noted that the specific type of the terminal 11 is not limited in the present embodiment. The access network device 12 may include an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (RAN), a radio access network function or a radio access network unit. The access network device 12 may include a base station, a WLAN access point or a WiFi node, etc. The base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B, a home evolved node B, a transmitting and receiving point (TRP) or other appropriate terms in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, it should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited. The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home user server (Home Subscriber Server, HSS), centralized network configuration (CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

The following, in combination with the accompanying drawings, describes in detail the uplink control information transmission method, device and terminal provided in the embodiments of the present application through some embodiments and their application scenarios.

As shown in Figure 2, the present application provides an uplink control information transmission method, the execution subject of the method is a terminal, in other words, the method can be executed by software or hardware installed in the terminal. The method includes the following steps.

S210, the terminal maps the uplink control information UCI to N codewords among the M codewords for uplink transmission for uplink transmission; wherein M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.

The terminal supports multiple codewords when performing uplink transmission, that is, M codewords are transmitted simultaneously. The uplink transmission is transmitted to a network side device through an uplink channel, such as a physical uplink control channel (Physical Uplink Control Channel, PUCCH) or a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).

When the terminal reports UCI, it needs to determine the number of codewords M used for uplink transmission and the M codewords The number N of codewords used to map UCI. For example, if the number M of codewords used by the terminal for uplink transmission is a positive integer greater than or equal to 2, UCI can be mapped to 1 of the M codewords for transmission, or UCI can be mapped to N codewords less than or equal to M for transmission; if the number of codewords used by the terminal for uplink transmission is 1, UCI is mapped to the codeword for transmission. The numbers of M and N can be set according to actual needs, but for the sake of simplicity, the following embodiments are all exemplified by taking M as 2 and N as 1 or 2 as examples.

In one implementation, step S210 includes:

When N is 1, the terminal maps the UCI to the first codeword among the M codewords used for uplink transmission for uplink transmission.

The first codeword may be determined in various ways, for example, it may be determined by an instruction of a network side device or by a terminal. In one implementation, the first codeword is determined by at least one of the following:

the Lth codeword among the M codewords; wherein L is a positive integer less than or equal to M. The terminal may map the UCI to the Lth codeword among the M codewords, for example, always mapping the UCI to the first codeword or the second codeword among the two codewords used for uplink transmission;

The codeword with the highest modulation and coding scheme (MCS) index value among the M codewords. If the M codewords correspond to different MCSs, the terminal may map the UCI to the codeword with the highest MCS index value; if the MCSs corresponding to the M codewords are the same, the UCI may be mapped to a default codeword;

The codeword with the largest number of transmission layers among the M codewords. If the transmission ranks or the numbers of transmission layers corresponding to the M codewords are different, the terminal may map the UCI to the codeword with the highest transmission rank or the largest number of transmission layers; if the transmission ranks or the numbers of transmission layers corresponding to the M codewords are the same, the terminal may map the UCI to a default codeword;

The first codeword is determined by the codeword indicated by the first signaling field, that is, according to the direct or indirect indication of the first signaling field in the received control signaling. The first signaling field may include at least one of the following: a Transmitted Precoding Matrix Indicator (TPMI) signaling field, a Sounding Reference Signal Resource Indicator (SRI) signaling field, and a Demodulation Reference Signal (DMRS) signaling field;

The codewords among the M codewords except the codewords used to transmit data, that is, the UCI and the data are not multiplexed on the same codeword.

The terminal may determine the first codeword based on one or more of the above items.

In one implementation, when the terminal maps the UCI onto the first codeword, rate matching and/or data puncturing are performed on the first codeword. Optionally, data is not transmitted on resource elements (REs) corresponding to codewords other than the first codeword among the M codewords.

In another embodiment, step S210 includes:

In the case where N is a positive integer greater than or equal to 2, the terminal maps the UCI to N codewords among the M codewords used for uplink transmission by adopting a first multiplexing rule for uplink transmission.

In one implementation, the first multiplexing rule includes at least one of the following:

Repeatedly transmitting the UCI on the N codewords, and performing modulation and coding on each codeword respectively;

The N codewords correspond to the same modulation and coding method or to different modulation and coding methods. For example, when performing uplink data scheduling, the network side device indicates that the MCSs corresponding to the N codewords may be the same or different;

The N codewords correspond to the same modulation method or to different modulation methods. For example, the N codewords may use the same coding method and different modulation methods, or the N codewords may use different coding methods and the same modulation method;

Divide the UCI into N data blocks and map them to the N codewords respectively; wherein the division of the N data blocks may be specifically determined according to the MCS corresponding to each codeword and the number of transmission layers corresponding to each codeword;

Mapping the first part (CSI part one) of the channel state information CSI in the UCI onto a codeword, i.e. ensuring that the CSI part one is not mapped across codewords;

Repeating the transmission of the first part of the CSI in the UCI on the N codewords;

Mapping a broadband part of a first part of CSI and a broadband part of a second part of CSI (CSI part two) in the UCI onto the same codeword;

The UCI is mapped to all transmission layers corresponding to the N codewords.

In one implementation, when the N codewords correspond to the same MCS, the modulation and coding method of the UCI is determined according to the same MCS, and the same MCS may be indicated by a network side device.

In one implementation, when the N codewords correspond to different MCSs, the modulation and coding method of the UCI is determined by at least one of the following:

One MCS among different MCSs corresponding to the N codewords, such as the MCS with the lowest or highest index value;

A reference MCS, where the reference MCS may be indicated by a network device, agreed upon by a protocol, or determined by a terminal;

The power offset corresponding to the N codewords, the power offset can be expressed as betaoffset.

In one implementation, the betaoffsets corresponding to the N codewords are determined according to at least one of the following:

High-level signaling indication;

Physical layer signaling indication;

MCS;

Number of transport layers;

Offset (delta).

In one implementation, the betaoffset corresponding to the N codewords may be determined by high-level signaling or physical layer signaling. Let etc. indicate N betaoffsets respectively.

In another implementation, only one betaoffset may be indicated, and the other N-1 betaoffsets may be determined according to the MCS or the number of transmission layers corresponding to each codeword.

In another embodiment, when only one betaoffset is indicated, the other N-1 betaoffsets may be determined sequentially based on a fixed offset.

It can be seen from the technical solutions of the above embodiments that the embodiments of the present application can solve the problem of how to transmit UCI by mapping the uplink control information UCI to N codewords among the M codewords used for uplink transmission for uplink transmission.

Based on the above embodiment, in one implementation manner, before step S210, the method further includes:

S200: The terminal determines the number N of codewords used to map the UCI.

In one implementation, the terminal may determine the codeword data N used to map the UCI according to the first control signaling received from the network side device.

In one implementation, the first control signaling may be used to indicate at least one of the following:

The number M of codewords used by the terminal for uplink transmission;

The number N of codewords used to map UCI;

The MCS corresponding to each codeword.

The network side device can use the first control signaling to display and instruct the terminal whether to map the UCI to one codeword or multiple codewords. The first control signaling can be of various types. For the sake of simplicity, the following embodiments use downlink control information (DCI) as an example to illustrate the display indication method of the first control signaling.

In one implementation, it may be indicated by a separate second signaling field in the first control signaling. For example, when N is 1 or 2, a 1-bit second signaling field may be introduced in the DCI, and when the second signaling field is "1", it indicates that the UCI is multiplexed on one codeword, and when the second signaling field is "0", it indicates that the UCI is multiplexed on two codewords.

In another embodiment, a 1-bit third information field may be introduced into the DCI, and combined with the existing uplink shared channel indicator (UpLink Shared Channel indicator, UL-SCH indicator) signaling field (1 bit) for joint indication, there are a total of 4 states, which are used to indicate whether UCI can be multiplexed in two codewords used for uplink transmission. For example, they can be used to indicate: the first codeword is a codeword used only for the uplink shared channel (UL-SCH only), or the second codeword is a UL-SCH only codeword, or both codewords are UL-SCH only codewords.

In another embodiment, corresponding UL-SCH indicator signaling fields may be introduced for the two codewords used for uplink transmission, respectively, to indicate whether each codeword can reuse UCI.

In another implementation manner, the terminal may also determine the codeword data N used to map the UCI according to at least one of the following:

The overhead of the UCI, such as the number of bits;

The type of UCI;

The time domain characteristics of the UCI.

The terminal may determine whether the UCI is multiplexed in one codeword or in multiple codewords according to at least one of an overhead, a type, and a time domain characteristic of the UCI.

In one implementation, when the first control signaling indicates at least one of the following, N is 1:

The uplink transmission is only used to transmit UCI (UCI only);

The uplink transmission is used to transmit UCI and uplink data, and the number M of codewords used for uplink transmission is greater than or equal to 2.

In one implementation, when the first control signaling indicates that uplink transmission is only used to transmit UCI, the terminal determines that the number M of codewords used for uplink transmission is 1 or uses a transmission rank less than or equal to 4 for uplink transmission. When UCI only is indicated in the first control signaling, even if it is indicated to use multiple codewords for uplink transmission, the terminal will fall back to a single codeword for uplink transmission or limit the uplink transmission to a transmission rank less than or equal to 4.

It can be seen from the technical solutions of the above embodiments that the embodiments of the present application determine the number N of codewords mapped by UCI by an explicit or implicit method, and then map the UCI to the N codewords according to the multiplexing rule corresponding to N, thereby solving the problem of how to transmit UCI.

The uplink control information transmission method provided in the embodiment of the present application may be executed by an uplink control information transmission device. In the embodiment of the present application, the uplink control information transmission device performing the uplink control information transmission method is taken as an example to illustrate the uplink control information transmission device provided in the embodiment of the present application.

As shown in FIG. 3 , the uplink control information transmission device includes: a first execution module 301 and a first transmission module 302 .

The first execution module 301 is used to determine N codewords among M codewords for uplink transmission; the first transmission module 302 is used to map UCI to N codewords among M codewords for uplink transmission for uplink transmission; wherein, M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.

Optionally, the first transmission module 302 is used to, when N is 1, map the UCI to a first codeword among M codewords for uplink transmission for uplink transmission.

Optionally, the first codeword is determined by at least one of the following:

The Lth codeword among the M codewords; wherein L is a positive integer less than or equal to M;

The codeword with the highest index value of the modulation and coding scheme MCS among the M codewords;

The codeword with the largest number of transmission layers among the M codewords;

A codeword indicated by a first signaling field;

The codewords among the M codewords except the codewords used for transmitting data.

Optionally, the first signaling domain includes at least one of the following:

Transmission precoding matrix indication TPMI signaling field;

Sounding reference signal resource indication SRI signaling field;

Demodulation Reference Signal DMRS signaling domain.

Optionally, the first transmission module 302 is further configured to perform at least one of the following on the first codeword:

Rate matching;

Data punching.

Optionally, the first transmission module 302 is configured not to transmit data on time-frequency units corresponding to other codewords among the M codewords except the first codeword.

Optionally, the first transmission module 302 is used to map the UCI to N codewords among M codewords for uplink transmission using a first multiplexing rule for uplink transmission when N is a positive integer greater than or equal to 2;

The first multiplexing rule includes at least one of the following:

Repeatedly transmitting the UCI on the N codewords, and performing modulation and coding on each codeword respectively;

The N codewords correspond to the same modulation and coding method or to different modulation and coding methods;

The N codewords correspond to the same modulation method or to different modulation methods;

Divide the UCI into N data blocks and map them to the N codewords respectively;

Mapping a first part of the channel state information CSI in the UCI onto a codeword;

Repeating the transmission of the first part of the CSI in the UCI on the N codewords;

Mapping a wideband part of a first part of the CSI and a wideband part of a second part of the CSI in the UCI onto the same codeword;

The UCI is mapped to all transmission layers corresponding to the N codewords.

Optionally, when the N codewords correspond to the same MCS, the modulation and coding method of the UCI is determined according to the same MCS.

Optionally, when the N codewords correspond to different MCSs, the modulation and coding method of the UCI is determined by at least one of the following:

One MCS among different MCSs corresponding to the N codewords;

Reference MCS;

The power offset betaoffset corresponding to the N codewords.

Optionally, betaoffset corresponding to the N codewords is determined according to at least one of the following:

High-level signaling indication;

Physical layer signaling indication;

MCS;

Number of transport layers;

Offset.

It can be seen from the technical solutions of the above embodiments that the uplink control information UCI is mapped to By performing uplink transmission on N codewords among M codewords used for uplink transmission, the problem of how to transmit UCI can be solved.

Based on the above embodiment, optionally, the first execution module 301 is further configured to determine the number N of codewords used to map the UCI according to at least one of the following:

A first control signaling received from a network side device;

the cost of the UCI;

The type of UCI;

The time domain characteristics of the UCI.

Optionally, when the first control signaling indicates at least one of the following, N is 1:

The uplink transmission is only used to transmit UCI;

The uplink transmission is used to transmit UCI and uplink data, and the number M of codewords used for uplink transmission is greater than or equal to 2.

Optionally, the first transmission module 302 is used to determine that the number M of codewords used for uplink transmission is 1 or to use a transmission rank less than or equal to 4 for uplink transmission when the first control signaling indicates that the uplink transmission is only used to transmit UCI.

It can be seen from the technical solutions of the above embodiments that the embodiments of the present application determine the number N of codewords mapped by UCI by an explicit or implicit method, and then map the UCI to the N codewords according to the multiplexing rule corresponding to N, thereby solving the problem of how to transmit UCI.

The uplink control information transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than a terminal. Exemplarily, the terminal may include but is not limited to the types of terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

The uplink control information transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 2 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

As shown in Figure 4, the present application provides an uplink control information transmission method, the execution subject of the method is a terminal, in other words, the method can be executed by software or hardware installed in the terminal. The method includes the following steps.

S410. The network side device sends a first control signaling to the terminal, where the first control signaling is used to instruct the terminal to map the UCI to N codewords among M codewords for uplink transmission for uplink transmission; wherein M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.

Optionally, when the first control signaling indicates that uplink transmission is only used to transmit UCI, the first control signaling is also used to indicate that the number M of codewords used by the terminal for uplink transmission is 1 or that a transmission rank less than or equal to 4 is used for uplink transmission.

It can be seen from the technical solutions of the above embodiments that, in the embodiments of the present application, by sending a first control signaling to the terminal, The first control signaling is used to instruct the terminal to map the UCI to N codewords among the M codewords used for uplink transmission for uplink transmission, which can solve the problem of how to transmit the UCI.

The uplink control information transmission method provided in the embodiment of the present application may be executed by an uplink control information transmission device. In the embodiment of the present application, the uplink control information transmission device performing the uplink control information transmission method is taken as an example to illustrate the uplink control information transmission device provided in the embodiment of the present application.

As shown in FIG. 5 , the uplink control information transmission device includes: a second execution module 501 and a second transmission module 502 .

The second execution module 501 is used to determine the first control signaling; the second transmission module 502 is used to send the first control signaling to the terminal, and the first control signaling is used to instruct the terminal to map the UCI to N codewords among M codewords for uplink transmission for uplink transmission; wherein, M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.

Optionally, when the first control signaling indicates that uplink transmission is only used to transmit UCI, the first control signaling is also used to indicate that the number M of codewords used by the terminal for uplink transmission is 1 or that a transmission rank less than or equal to 4 is used for uplink transmission.

It can be seen from the technical solutions of the above embodiments that the embodiments of the present application can solve the problem of how to transmit UCI by sending a first control signaling to the terminal, wherein the first control signaling is used to instruct the terminal to map UCI to N codewords among M codewords for uplink transmission for uplink transmission.

The uplink control information transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than a terminal. Exemplarily, the terminal may include but is not limited to the types of terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

The uplink control information transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 4 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

Optionally, as shown in FIG6 , an embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, wherein the memory 602 stores a program or instruction that can be run on the processor 601. For example, when the communication device 600 is a terminal, the program or instruction is executed by the processor 601 to implement the various steps of the above-mentioned uplink control information transmission method embodiment, and can achieve the same technical effect. When the communication device 600 is a network side device, the program or instruction is executed by the processor 601 to implement the various steps of the above-mentioned uplink control information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

The embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is used to determine N codewords among M codewords for uplink transmission, and the communication interface is used to map UCI to N codewords among M codewords for uplink transmission for uplink transmission. The terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, FIG. 7 is a schematic diagram of the hardware structure of a terminal implementing the embodiment of the present application picture.

The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and at least some of the components of a processor 710.

Those skilled in the art will appreciate that the terminal 700 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 710 through a power management system, so as to implement functions such as managing charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG7 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.

It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 701 can transmit the data to the processor 710 for processing; in addition, the RF unit 701 can send uplink data to the network side device. Generally, the RF unit 701 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 709 may include a volatile memory or a non-volatile memory, or the memory 709 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct memory. Direct Rambus RAM (DRRAM) The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 710.

The processor 710 is configured to determine N codewords among M codewords for uplink transmission.

The radio frequency unit 701 is used to map the UCI to N codewords among the M codewords for uplink transmission for uplink transmission; wherein, M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.

Optionally, the radio frequency unit 701 is used to map the UCI to a first codeword among M codewords for uplink transmission for uplink transmission when N is 1.

Optionally, the first codeword is determined by at least one of the following:

The Lth codeword among the M codewords; wherein L is a positive integer less than or equal to M;

The codeword with the highest index value of the modulation and coding scheme MCS among the M codewords;

The codeword with the largest number of transmission layers among the M codewords;

A codeword indicated by a first signaling field;

The codewords among the M codewords except the codewords used for transmitting data.

Optionally, the first signaling domain includes at least one of the following:

Transmission precoding matrix indication TPMI signaling field;

Sounding reference signal resource indication SRI signaling field;

Demodulation Reference Signal DMRS signaling domain.

Optionally, the radio frequency unit 701 is further configured to perform at least one of the following on the first codeword:

Rate matching;

Data punching.

Optionally, the radio frequency unit 701 is configured not to transmit data on time-frequency units corresponding to other codewords among the M codewords except the first codeword.

Optionally, the radio frequency unit 701 is used to map the UCI to N codewords among M codewords for uplink transmission using a first multiplexing rule for uplink transmission when N is a positive integer greater than or equal to 2;

The first multiplexing rule includes at least one of the following:

Repeatedly transmitting the UCI on the N codewords, and performing modulation and coding on each codeword respectively;

The N codewords correspond to the same modulation and coding method or to different modulation and coding methods;

The N codewords correspond to the same modulation method or to different modulation methods;

Divide the UCI into N data blocks and map them to the N codewords respectively;

Mapping a first part of the channel state information CSI in the UCI onto a codeword;

Repeating the transmission of the first part of the CSI in the UCI on the N codewords;

Mapping a wideband part of a first part of the CSI and a wideband part of a second part of the CSI in the UCI onto the same codeword;

The UCI is mapped to all transmission layers corresponding to the N codewords.

Optionally, when the N codewords correspond to the same MCS, the modulation and coding method of the UCI is determined according to the same MCS.

Optionally, when the N codewords correspond to different MCSs, the modulation and coding method of the UCI is determined by at least one of the following:

One MCS among different MCSs corresponding to the N codewords;

Reference MCS;

The power offset betaoffset corresponding to the N codewords.

Optionally, betaoffset corresponding to the N codewords is determined according to at least one of the following:

High-level signaling indication;

Physical layer signaling indication;

MCS;

Number of transport layers;

Offset.

The embodiments of the present application can solve the problem of how to transmit UCI.

Based on the foregoing embodiment, optionally, the processor 710 is further configured to determine the number N of codewords used to map the UCI according to at least one of the following:

A first control signaling received from a network side device;

the cost of the UCI;

The type of UCI;

The time domain characteristics of the UCI.

Optionally, when the first control signaling indicates at least one of the following, N is 1:

The uplink transmission is only used to transmit UCI;

The uplink transmission is used to transmit UCI and uplink data, and the number M of codewords used for uplink transmission is greater than or equal to 2.

Optionally, the radio frequency unit 701 is used to determine that the number M of codewords used for uplink transmission is 1 or to use a transmission rank less than or equal to 4 for uplink transmission when the first control signaling indicates that the uplink transmission is only used to transmit UCI.

The embodiments of the present application can solve the problem of how to transmit UCI.

The embodiment of the present application also provides a network side device, including a processor and a communication interface, the processor is used to determine the first control signaling, and the communication interface is used to send the first control signaling to the terminal. Corresponding to the network side device method embodiment, each implementation process and implementation method of the above method embodiment can be applied to the network side device embodiment and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in Figure 8, the network side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and sends it out through the antenna 81.

The method executed by the network-side device in the above embodiment may be implemented in the baseband device 83, which includes a baseband processor.

The baseband device 83 may include, for example, at least one baseband board, on which a plurality of chips are arranged, as shown in FIG8 , wherein one of the chips is, for example, a baseband processor, which is connected to the memory 85 through a bus interface to call a program in the memory 85 and execute the network device operations shown in the above method embodiment.

The network side device may also include a network interface 86, which is, for example, a common public radio interface (CPRI).

Specifically, the network side device 800 of the embodiment of the present invention also includes: instructions or programs stored in the memory 85 and executable on the processor 84. The processor 84 calls the instructions or programs in the memory 85 to execute the methods executed by the modules shown in Figure 5 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned uplink control information transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned uplink control information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

The embodiment of the present application further provides a computer program/program product, which is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the various processes of the above-mentioned uplink control information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

The embodiment of the present application also provides an uplink control information transmission system, including: a terminal and a network side device, wherein the terminal can be used to perform the steps of the uplink control information transmission method as described above, and the network side device can be used to The method is used to execute the steps of the uplink control information transmission method as described above.

It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims (23)

1. A method for transmitting uplink control information, comprising:

   The terminal maps the uplink control information UCI to N codewords among the M codewords used for uplink transmission for uplink transmission; wherein, M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.
2. The method according to claim 1, wherein the terminal maps the UCI of the uplink control information to N codewords among the M codewords for uplink transmission for uplink transmission comprises:

   When N is 1, the terminal maps the UCI to a first codeword among the M codewords for uplink transmission for uplink transmission;

   The first codeword is determined by at least one of the following:

   The Lth codeword among the M codewords; wherein L is a positive integer less than or equal to M;

   The codeword with the highest index value of the modulation and coding scheme MCS among the M codewords;

   The codeword with the largest number of transmission layers among the M codewords;

   A codeword indicated by a first signaling field;

   The codewords among the M codewords except the codewords used for transmitting data.
3. The method according to claim 2, wherein the first signaling domain includes at least one of the following:

   Transmission precoding matrix indication TPMI signaling field;

   Sounding reference signal resource indication SRI signaling field;

   Demodulation Reference Signal DMRS signaling domain.
4. The method according to claim 2, wherein the method further comprises:

   Perform at least one of the following on the first codeword:

   Rate matching;

   Data punching.
5. The method according to claim 2, wherein no data is transmitted on the time-frequency units corresponding to the other codewords in the M codewords except the first codeword.
6. The method according to claim 1, wherein the terminal maps the UCI of the uplink control information to N codewords among the M codewords for uplink transmission for uplink transmission comprises:

   When N is a positive integer greater than or equal to 2, the terminal maps the UCI to N codewords among the M codewords for uplink transmission by adopting a first multiplexing rule for uplink transmission;

   The first multiplexing rule includes at least one of the following:

   Repeatedly transmitting the UCI on the N codewords, and performing modulation and coding on each codeword respectively;

   The N codewords correspond to the same modulation and coding method or to different modulation and coding methods;

   The N codewords correspond to the same modulation method or to different modulation methods;

   Divide the UCI into N data blocks and map them to the N codewords respectively;

   Mapping a first part of the channel state information CSI in the UCI onto a codeword;

   Repeating the transmission of the first part of the CSI in the UCI on the N codewords;

   Mapping a wideband part of a first part of the CSI and a wideband part of a second part of the CSI in the UCI onto the same codeword;

   The UCI is mapped to all transmission layers corresponding to the N codewords.
7. The method according to claim 6, wherein, when the N codewords correspond to the same MCS, the modulation and coding method of the UCI is determined according to the same MCS.
8. The method according to claim 6, wherein, when the N codewords correspond to different MCSs, the modulation and coding method of the UCI is determined by at least one of the following:

   One MCS among different MCSs corresponding to the N codewords;

   Reference MCS;

   The power offset betaoffset corresponding to the N codewords.
9. The method according to claim 8, wherein the betaoffsets corresponding to the N codewords are determined according to at least one of the following:

   High-level signaling indication;

   Physical layer signaling indication;

   MCS;

   Number of transport layers;

   Offset.
10. The method according to claim 1, wherein, before the terminal maps the uplink control information UCI to N codewords for uplink transmission, the method further comprises:

    The terminal determines the number N of codewords used to map the UCI according to at least one of the following:

    A first control signaling received from a network side device;

    the cost of the UCI;

    The type of UCI;

    The time domain characteristics of the UCI.
11. The method according to claim 10, wherein the N is 1 when the first control signaling indicates at least one of the following:

    The uplink transmission is only used to transmit UCI;

    The uplink transmission is used to transmit UCI and uplink data, and the number M of codewords used for uplink transmission is greater than or equal to 2.
12. The method according to claim 11, wherein, when the first control signaling indicates that the uplink transmission is only used to transmit UCI, the terminal determines that the number M of codewords used for uplink transmission is 1 or uses a transmission rank less than or equal to 4 for uplink transmission.
13. An uplink control information transmission device, comprising:

    A first execution module, configured to determine N codewords among M codewords for uplink transmission;

    The first transmission module is used to map the UCI to N codewords among M codewords for uplink transmission for uplink transmission; wherein, M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.
14. A method for transmitting uplink control information, comprising:

    The network side device sends a first control signaling to the terminal, where the first control signaling is used to instruct the terminal to map the UCI to N codewords among M codewords for uplink transmission for uplink transmission; wherein M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.
15. The method according to claim 14, wherein, when the first control signaling indicates that the uplink transmission is only used to transmit UCI, the first control signaling is also used to indicate that the number M of codewords used by the terminal for uplink transmission is 1 or that a transmission rank less than or equal to 4 is used for uplink transmission.
16. An uplink control information transmission device, comprising:

    A second execution module, configured to determine a first control signaling;

    The second transmission module is used to send a first control signaling to the terminal, where the first control signaling is used to instruct the terminal to map the UCI to N codewords among M codewords for uplink transmission for uplink transmission; wherein M is a positive integer greater than or equal to 2, and N is a positive integer less than or equal to M.
17. A terminal comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the uplink control information transmission method as described in any one of claims 1 to 12 are implemented.
18. A network side device comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the uplink control information transmission method as described in any one of claims 14 to 15 are implemented.
19. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the uplink control information transmission method as described in any one of claims 1 to 12, or implements the steps of the uplink control information transmission method as described in any one of claims 14 to 15.
20. A computer program product, wherein the computer program product is stored in a storage medium, and when the computer program product is executed by at least one processor, the computer program product implements the uplink control information transmission method as described in any one of claims 1 to 12, or implements the uplink control information transmission method as described in any one of claims 14 to 15.
21. A chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the uplink control information transmission method as described in any one of claims 1 to 12, or to implement the uplink control information transmission method as described in any one of claims 14 to 15.
22. A terminal, characterized in that the terminal is configured to execute the uplink control information transmission method according to any one of claims 1 to 12.
23. A network side device, characterized in that the network side device is configured to execute the uplink control information transmission method as described in any one of claims 14 to 15.